scala_tutorial

Scala
class Super {
}
protected def f() { println("f") }
class Sub extends Super {
}
f() //Ok : Sub class is the child class of Super class
class Other {
}
(new Super).f() // Error: f is not accessible
}
The access to f in class Sub is OK because f is declared protected in ‘Super’ class and ‘Sub’
class is a subclass of Super. By contrast the access to f in ‘Other’ class is not permitted,
because class ‘Other’ does not inherit from class ‘Super’. In Java, the latter access would be
still permitted because ‘Other’ class is in the same package as ‘Sub’ class.
Public Members
Like private and protected members, it is not required to specify Public keyword for Public
members. There is no explicit modifier for public members. Such members can be accessed
from anywhere.
Following is the example code snippet to explain protected member:
class Outer {
class Inner {
def f() { println("f") }
class InnerMost {
f() // OK
}
}
(new Inner).f() // OK because now f() is public
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